<!doctype html>
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<head>
<meta charset='UTF-8'><meta name='viewport' content='width=device-width initial-scale=1'>
<title>README</title><link href='https://fonts.loli.net/css?family=PT+Serif:400,400italic,700,700italic&subset=latin,cyrillic-ext,cyrillic,latin-ext' rel='stylesheet' type='text/css' /><style type='text/css'>html {overflow-x: initial !important;}:root { --bg-color:#ffffff; --text-color:#333333; --select-text-bg-color:#B5D6FC; --select-text-font-color:auto; --monospace:"Lucida Console",Consolas,"Courier",monospace; }
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iframe { margin: auto; }
a.url { word-break: break-all; }
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.md-toc-content { position: relative; margin-left: 0px; }
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.md-toc-item { display: block; color: rgb(65, 131, 196); }
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.md-toc-h2 .md-toc-inner { margin-left: 2em; }
.md-toc-h3 .md-toc-inner { margin-left: 4em; }
.md-toc-h4 .md-toc-inner { margin-left: 6em; }
.md-toc-h5 .md-toc-inner { margin-left: 8em; }
.md-toc-h6 .md-toc-inner { margin-left: 10em; }
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  .md-toc-h3 .md-toc-inner { margin-left: 3.5em; }
  .md-toc-h4 .md-toc-inner { margin-left: 5em; }
  .md-toc-h5 .md-toc-inner { margin-left: 6.5em; }
  .md-toc-h6 .md-toc-inner { margin-left: 8em; }
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.footnote-line a:not(.reversefootnote) { color: inherit; }
.md-attr { display: none; }
.md-fn-count::after { content: "."; }
code, pre, samp, tt { font-family: var(--monospace); }
kbd { margin: 0px 0.1em; padding: 0.1em 0.6em; font-size: 0.8em; color: rgb(36, 39, 41); background: rgb(255, 255, 255); border: 1px solid rgb(173, 179, 185); border-radius: 3px; box-shadow: rgba(12, 13, 14, 0.2) 0px 1px 0px, rgb(255, 255, 255) 0px 0px 0px 2px inset; white-space: nowrap; vertical-align: middle; }
.md-comment { color: rgb(162, 127, 3); opacity: 0.8; font-family: var(--monospace); }
code { text-align: left; vertical-align: initial; }
a.md-print-anchor { white-space: pre !important; border-width: initial !important; border-style: none !important; border-color: initial !important; display: inline-block !important; position: absolute !important; width: 1px !important; right: 0px !important; outline: 0px !important; background: 0px 0px !important; text-decoration: initial !important; text-shadow: initial !important; }
.md-inline-math .MathJax_SVG .noError { display: none !important; }
.md-math-block .MathJax_SVG_Display { text-align: center; margin: 0px; position: relative; text-indent: 0px; max-width: none; max-height: none; min-height: 0px; min-width: 100%; width: auto; overflow-y: hidden; display: block !important; }
.MathJax_SVG_Display, .md-inline-math .MathJax_SVG_Display { width: auto; margin: inherit; display: inline-block !important; }
.MathJax_SVG .MJX-monospace { font-family: var(--monospace); }
.MathJax_SVG .MJX-sans-serif { font-family: sans-serif; }
.MathJax_SVG { display: inline; font-style: normal; font-weight: 400; line-height: normal; zoom: 90%; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; }
.MathJax_SVG * { transition: none; }
.MathJax_SVG_Display svg { vertical-align: middle !important; margin-bottom: 0px !important; }
.os-windows.monocolor-emoji .md-emoji { font-family: "Segoe UI Symbol", sans-serif; }
.md-diagram-panel > svg { max-width: 100%; }
[lang="mermaid"] svg, [lang="flow"] svg { max-width: 100%; }
[lang="mermaid"] .node text { font-size: 1rem; }
table tr th { border-bottom: 0px; }
video { max-width: 100%; display: block; margin: 0px auto; }
iframe { max-width: 100%; width: 100%; border: none; }
.highlight td, .highlight tr { border: 0px; }


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.CodeMirror-linenumber { padding: 0px 3px 0px 5px; text-align: right; color: rgb(153, 153, 153); }
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:root { --rawblock-edit-panel-bd: #e5e5e5; }
@font-face { font-family: "PT Serif"; font-style: normal; font-weight: normal; src: local("PT Serif"), local("PTSerif-Regular"), url("./newsprint/pt-serif-v9-latin-regular.woff") format("woff"); }
@font-face { font-family: "PT Serif"; font-style: italic; font-weight: normal; src: local("PT Serif"), local("PTSerif-Italic"), url("./newsprint/pt-serif-v9-latin-italic.woff") format("woff"); }
@font-face { font-family: "PT Serif"; font-style: normal; font-weight: bold; src: local("PT Serif"), local("PTSerif-Bold"), url("./newsprint/pt-serif-v9-latin-700.woff") format("woff"); }
@font-face { font-family: "PT Serif"; font-style: italic; font-weight: bold; src: local("PT Serif"), local("PTSerif-BoldItalic"), url("./newsprint/pt-serif-v9-latin-700italic.woff") format("woff"); }
:root { --active-file-bg-color: rgba(32, 43, 51, 0.63); --active-file-text-color: white; --bg-color: #f3f2ee; --text-color: #1f0909; --select-text-bg-color: rgba(32, 43, 51, 0.63); --select-text-font-color: white; }
pre { --select-text-bg-color: #36284e; --select-text-font-color: #fff; }
html { font-size: 16px; }
html, body { background-color: rgb(243, 242, 238); font-family: "PT Serif", "Times New Roman", Times, serif; color: rgb(31, 9, 9); line-height: 1.5em; }
#write { max-width: 40em; }
ol li { list-style-type: decimal; list-style-position: outside; }
ul li { list-style-type: disc; list-style-position: outside; }
ol, ul { list-style: none; }
blockquote, q { quotes: none; }
blockquote::before, blockquote::after, q::before, q::after { content: none; }
table { border-collapse: collapse; border-spacing: 0px; }
h1, h2, h3, h4, h5, h6 { font-weight: bold; }
h1 { font-size: 1.875em; line-height: 1.6em; margin-top: 2em; }
h2, h3 { font-size: 1.3125em; line-height: 1.15; margin-top: 2.28571em; margin-bottom: 1.15em; }
h3 { font-weight: normal; }
h4 { font-size: 1.125em; margin-top: 2.67em; }
h5, h6 { font-size: 1em; }
h1 { border-bottom: 1px solid; margin-bottom: 1.875em; padding-bottom: 0.8125em; }
a { text-decoration: none; color: rgb(6, 85, 136); }
a:hover, a:active { text-decoration: underline; }
p, blockquote, .md-fences { margin-bottom: 1.5em; }
h1, h2, h3, h4, h5, h6 { margin-bottom: 1.5em; }
blockquote { font-style: italic; border-left: 5px solid; margin-left: 2em; padding-left: 1em; }
ul, ol { margin: 0px 0px 1.5em 1.5em; }
.md-meta, .md-before, .md-after { color: rgb(153, 153, 153); }
table { margin-bottom: 1.5em; font-size: 1em; }
thead th, tfoot th { padding: 0.25em 0.25em 0.25em 0.4em; text-transform: uppercase; }
th { text-align: left; }
td { vertical-align: top; padding: 0.25em 0.25em 0.25em 0.4em; }
code, .md-fences { background-color: rgb(218, 218, 218); padding-left: 1ch; padding-right: 1ch; }
.md-fences { margin-left: 2em; margin-bottom: 3em; }
pre, code, tt { font-size: 0.875em; line-height: 1.71429em; }
h1 { line-height: 1.3em; font-weight: normal; margin-bottom: 0.5em; }
p + ul, p + ol { margin-top: -1em; }
h3 + ul, h4 + ul, h5 + ul, h6 + ul, h3 + ol, h4 + ol, h5 + ol, h6 + ol { margin-top: 0.5em; }
li > ul, li > ol { margin-top: inherit; margin-bottom: 0px; }
li li { list-style-type: lower-alpha; }
li li li { list-style-type: lower-roman; }
li > blockquote { margin-bottom: 0px; }
h2, h3 { margin-bottom: 0.75em; }
hr { border-top: none; border-right: none; border-bottom: 1px solid; border-left: none; }
h1 { border-color: rgb(197, 197, 197); }
blockquote { border-color: rgb(186, 186, 186); color: rgb(101, 101, 101); }
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thead { background-color: rgb(218, 218, 218); }
tr:nth-child(2n) { background: rgb(232, 231, 231); }
hr { border-color: rgb(197, 197, 197); }
.task-list { padding-left: 1rem; }
.md-task-list-item { padding-left: 1.5rem; list-style-type: none; }
.md-task-list-item > input::before { content: "√"; display: inline-block; width: 1.25rem; height: 1.6rem; vertical-align: middle; text-align: center; color: rgb(221, 221, 221); background-color: rgb(243, 242, 238); }
.md-task-list-item > input:checked::before, .md-task-list-item > input[checked]::before { color: inherit; }
#write pre.md-meta-block { min-height: 1.875rem; color: rgb(85, 85, 85); border: 0px; background: transparent; margin-left: 1em; margin-top: 1em; }
.md-image > .md-meta { color: rgb(155, 81, 70); }
.md-image > .md-meta { font-family: Menlo, "Ubuntu Mono", Consolas, "Courier New", "Microsoft Yahei", "Hiragino Sans GB", "WenQuanYi Micro Hei", serif; }
#write > h3.md-focus::before { left: -1.5rem; color: rgb(153, 153, 153); border-color: rgb(153, 153, 153); }
#write > h4.md-focus::before { left: -1.5rem; top: 0.25rem; color: rgb(153, 153, 153); border-color: rgb(153, 153, 153); }
#write > h5.md-focus::before { left: -1.5rem; color: rgb(153, 153, 153); border-color: rgb(153, 153, 153); }
#write > h6.md-focus::before { left: -1.5rem; top: 0.3125rem; color: rgb(153, 153, 153); border-color: rgb(153, 153, 153); }
.md-toc:focus .md-toc-content { margin-top: 19px; }
.md-toc-content:empty::before { color: rgb(6, 85, 136); }
.md-toc-item { color: rgb(6, 85, 136); }
#write div.md-toc-tooltip { background-color: rgb(243, 242, 238); }
#typora-sidebar { background-color: rgb(243, 242, 238); box-shadow: rgba(0, 0, 0, 0.376) 0px 6px 12px; }
.pin-outline #typora-sidebar { background: inherit; box-shadow: none; border-right: 1px dashed; }
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<div  id='write'  class = 'is-node'><p>非常感谢您阅读和使用《Scratch 3.0 编程入门》在线课程！</p><h2><a name='header-n3' class='md-header-anchor '></a>这是一套开源课程</h2><p>本课程是<strong>开源</strong>的。意味着您不需要花钱就可以完全免费使用它！如果您是孩子的家长，您可以跟自己的孩子一起使用，也可以通过微信等社交软件与您的朋友分享；如果您是老师，可以在您的课堂教学中使用。衷心希望这套课程对您、对您的孩子、您的学生有帮助！！</p><h2><a name='header-n5' class='md-header-anchor '></a>如果您是孩子的家长</h2><p>非常感谢您对孩子教育的重视！目前很多家长对教育的重视主要体现在文化课上（特别是进入小学高年级、初中以后），热衷于希望自己的孩子能够积累大量的知识、得到一个漂亮的分数。
但我们认为，随着社会的飞速发展，孩子们最重要的是保持对学习的好奇心、有各种各样的奇思妙想，拥有自我学习、动手实践创意的能力，而不仅仅是一个知识的容器！
为此，希望您在这门课程中扮演的是您孩子<strong>学习伙伴</strong>的角色，跟孩子一起学习、研究Scratch。别担心，Scratch编程并不难，哪怕您的专业跟计算机八竿子打不着、没有学习过编程，我们相信对于您来说只要想跟孩子一起学，肯定能够学会。
请记住，您是孩子的学习伙伴——不是高高在上的成人（哪怕您的是计算机专业人士），请不要用教训的语气与孩子沟通，多用欣赏的口吻赞扬他、善意的提醒建议他，和孩子一起学、一起研究、一起讨论！</p><h2><a name='header-n7' class='md-header-anchor '></a>如果您是老师</h2><p>欢迎您在学校的信息技术课、社团活动课、拓展性课程中使用这套在线课程。
在课程的使用过程中希望您不要仅仅做一位知识的讲授者，而应该是整个教学活动的组织者。多让学生自己去发现问题、思考解决问题；您只是一个问题的提出者、活动的组织者、规则的制定者；学生才是课堂的主人。
希望您的学生通过这套课程，不仅仅学会使用Scratch编写各种有趣的程序作品；更为重要的是孩子们在学习过程中能够持续保持兴趣、能够拥有进一步深入研究的欲望、能够经常体验到成功的喜悦。</p><h2><a name='header-n9' class='md-header-anchor '></a>交流渠道</h2><p>您可以扫描以下二维码加入QQ交流群。为了防止无关人员、信息的骚扰，加群的时候请留言注明您是家长还是老师，没有留言的将不会同意加群。如果方便的话最好能够将自己的QQ群名称改为真实信息的信息（如<strong><em>学校</em></strong>老师、<strong>年级学生爸爸&lt;妈妈&gt;*</strong>），方便大家交流。
<img src='https://images-cdn.shimo.im/fbkMh2GIHJo1TUXO/微信图片_20181109152244.jpg!thumbnail' alt='图片' referrerPolicy='no-referrer' /></p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm" lang=""><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang=""><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 4px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation"><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">  [下一课](https://shimo.im/docs/RGcyWiCeixUjM1jp)</span></pre></div></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 24px;"></div><div class="CodeMirror-gutters" style="display: none; height: 24px;"></div></div></div></pre></div>
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